Mechanism of chlorine conversion in collaborative disposal of hazardous solid waste in cement kilns at different temperatures
The conversion mechanism of chlorine at different calcination temperatures was investigated by using a high-temperature horizontal tube furnace to simulate the collaborative disposal process of cement kilns.The samples were characterized and analyzed using scanning electron microscopy,X-ray diffraction,energy dispersive spectroscopy,ion chromatography,etc.The results indicate that the calcination tempera-ture has a significant impact on the distribution of chlorine during the collaborative disposal process of ce-ment kilns.At high temperatures,chlorides can react with the main compounds in cement clinker,inclu-ding calcium,silicon,aluminum,and iron,forming chloride solid solutions,thereby reducing the solubility of chlorine.And the higher the calcination temperature,the greater the proportion of chlorine entering the flue gas and fly ash.At the same time,the migration pathway of chlorine and its impact on the structure of cement clinker were revealed.
collaborative disposal of cement kilnssolid wastecement clinkerchloride
万方数据
维普
